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167c5898 | 1 | /* |
1acafc73 SG |
2 | * Video uclass and legacy implementation |
3 | * | |
4 | * Copyright (c) 2015 Google, Inc | |
5 | * | |
6 | * MPC823 Video Controller | |
7 | * ======================= | |
8 | * (C) 2000 by Paolo Scaffardi (arsenio@tin.it) | |
9 | * AIRVENT SAM s.p.a - RIMINI(ITALY) | |
10 | * | |
11 | */ | |
167c5898 WD |
12 | |
13 | #ifndef _VIDEO_H_ | |
14 | #define _VIDEO_H_ | |
15 | ||
1acafc73 SG |
16 | #ifdef CONFIG_DM_VIDEO |
17 | ||
18 | #include <stdio_dev.h> | |
19 | ||
20 | struct video_uc_platdata { | |
21 | uint align; | |
22 | uint size; | |
23 | ulong base; | |
24 | }; | |
25 | ||
21c561b7 SG |
26 | enum video_polarity { |
27 | VIDEO_ACTIVE_HIGH, /* Pins are active high */ | |
28 | VIDEO_ACTIVE_LOW, /* Pins are active low */ | |
29 | }; | |
30 | ||
1acafc73 SG |
31 | /* |
32 | * Bits per pixel selector. Each value n is such that the bits-per-pixel is | |
33 | * 2 ^ n | |
34 | */ | |
35 | enum video_log2_bpp { | |
36 | VIDEO_BPP1 = 0, | |
37 | VIDEO_BPP2, | |
38 | VIDEO_BPP4, | |
39 | VIDEO_BPP8, | |
40 | VIDEO_BPP16, | |
41 | VIDEO_BPP32, | |
42 | }; | |
43 | ||
44 | /* | |
45 | * Convert enum video_log2_bpp to bytes and bits. Note we omit the outer | |
46 | * brackets to allow multiplication by fractional pixels. | |
47 | */ | |
48 | #define VNBYTES(bpix) (1 << (bpix)) / 8 | |
49 | ||
50 | #define VNBITS(bpix) (1 << (bpix)) | |
51 | ||
52 | /** | |
53 | * struct video_priv - Device information used by the video uclass | |
54 | * | |
55 | * @xsize: Number of pixel columns (e.g. 1366) | |
56 | * @ysize: Number of pixels rows (e.g.. 768) | |
8cdae1da | 57 | * @rot: Display rotation (0=none, 1=90 degrees clockwise, etc.) |
8c466ed3 | 58 | * @bpix: Encoded bits per pixel (enum video_log2_bpp) |
826f35f9 SG |
59 | * @vidconsole_drv_name: Driver to use for the text console, NULL to |
60 | * select automatically | |
61 | * @font_size: Font size in pixels (0 to use a default value) | |
1acafc73 SG |
62 | * @fb: Frame buffer |
63 | * @fb_size: Frame buffer size | |
06696ebe SG |
64 | * @line_length: Length of each frame buffer line, in bytes. This can be |
65 | * set by the driver, but if not, the uclass will set it after | |
66 | * probing | |
1acafc73 SG |
67 | * @colour_fg: Foreground colour (pixel value) |
68 | * @colour_bg: Background colour (pixel value) | |
69 | * @flush_dcache: true to enable flushing of the data cache after | |
70 | * the LCD is updated | |
71 | * @cmap: Colour map for 8-bit-per-pixel displays | |
9ffa4d12 | 72 | * @fg_col_idx: Foreground color code (bit 3 = bold, bit 0-2 = color) |
1acafc73 SG |
73 | */ |
74 | struct video_priv { | |
75 | /* Things set up by the driver: */ | |
76 | ushort xsize; | |
77 | ushort ysize; | |
78 | ushort rot; | |
79 | enum video_log2_bpp bpix; | |
826f35f9 SG |
80 | const char *vidconsole_drv_name; |
81 | int font_size; | |
1acafc73 SG |
82 | |
83 | /* | |
84 | * Things that are private to the uclass: don't use these in the | |
85 | * driver | |
86 | */ | |
87 | void *fb; | |
88 | int fb_size; | |
89 | int line_length; | |
5c30fbb8 HS |
90 | u32 colour_fg; |
91 | u32 colour_bg; | |
1acafc73 SG |
92 | bool flush_dcache; |
93 | ushort *cmap; | |
9ffa4d12 | 94 | u8 fg_col_idx; |
1acafc73 SG |
95 | }; |
96 | ||
97 | /* Placeholder - there are no video operations at present */ | |
98 | struct video_ops { | |
99 | }; | |
100 | ||
101 | #define video_get_ops(dev) ((struct video_ops *)(dev)->driver->ops) | |
102 | ||
103 | /** | |
104 | * video_reserve() - Reserve frame-buffer memory for video devices | |
105 | * | |
106 | * Note: This function is for internal use. | |
107 | * | |
108 | * This uses the uclass platdata's @size and @align members to figure out | |
109 | * a size and position for each frame buffer as part of the pre-relocation | |
110 | * process of determining the post-relocation memory layout. | |
111 | * | |
112 | * gd->video_top is set to the initial value of *@addrp and gd->video_bottom | |
113 | * is set to the final value. | |
114 | * | |
115 | * @addrp: On entry, the top of available memory. On exit, the new top, | |
116 | * after allocating the required memory. | |
117 | * @return 0 | |
118 | */ | |
119 | int video_reserve(ulong *addrp); | |
120 | ||
a085aa1f RC |
121 | /** |
122 | * video_clear() - Clear a device's frame buffer to background color. | |
123 | * | |
124 | * @dev: Device to clear | |
c6ebd011 | 125 | * @return 0 |
a085aa1f | 126 | */ |
c6ebd011 | 127 | int video_clear(struct udevice *dev); |
a085aa1f | 128 | |
1acafc73 SG |
129 | /** |
130 | * video_sync() - Sync a device's frame buffer with its hardware | |
131 | * | |
132 | * Some frame buffers are cached or have a secondary frame buffer. This | |
133 | * function syncs these up so that the current contents of the U-Boot frame | |
134 | * buffer are displayed to the user. | |
135 | * | |
136 | * @dev: Device to sync | |
55d39911 SG |
137 | * @force: True to force a sync even if there was one recently (this is |
138 | * very expensive on sandbox) | |
1acafc73 | 139 | */ |
55d39911 | 140 | void video_sync(struct udevice *vid, bool force); |
1acafc73 SG |
141 | |
142 | /** | |
143 | * video_sync_all() - Sync all devices' frame buffers with there hardware | |
144 | * | |
145 | * This calls video_sync() on all active video devices. | |
146 | */ | |
147 | void video_sync_all(void); | |
148 | ||
149 | /** | |
150 | * video_bmp_display() - Display a BMP file | |
151 | * | |
152 | * @dev: Device to display the bitmap on | |
153 | * @bmp_image: Address of bitmap image to display | |
154 | * @x: X position in pixels from the left | |
155 | * @y: Y position in pixels from the top | |
156 | * @align: true to adjust the coordinates to centre the image. If false | |
157 | * the coordinates are used as is. If true: | |
158 | * | |
159 | * - if a coordinate is 0x7fff then the image will be centred in | |
160 | * that direction | |
161 | * - if a coordinate is -ve then it will be offset to the | |
162 | * left/top of the centre by that many pixels | |
163 | * - if a coordinate is positive it will be used unchnaged. | |
164 | * @return 0 if OK, -ve on error | |
165 | */ | |
166 | int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y, | |
167 | bool align); | |
168 | ||
169 | /** | |
170 | * video_get_xsize() - Get the width of the display in pixels | |
171 | * | |
172 | * @dev: Device to check | |
173 | * @return device frame buffer width in pixels | |
174 | */ | |
175 | int video_get_xsize(struct udevice *dev); | |
176 | ||
177 | /** | |
178 | * video_get_ysize() - Get the height of the display in pixels | |
179 | * | |
180 | * @dev: Device to check | |
181 | * @return device frame buffer height in pixels | |
182 | */ | |
183 | int video_get_ysize(struct udevice *dev); | |
184 | ||
68dcdc99 SG |
185 | /** |
186 | * Set whether we need to flush the dcache when changing the image. This | |
187 | * defaults to off. | |
188 | * | |
189 | * @param flush non-zero to flush cache after update, 0 to skip | |
190 | */ | |
191 | void video_set_flush_dcache(struct udevice *dev, bool flush); | |
192 | ||
5c30fbb8 HS |
193 | /** |
194 | * Set default colors and attributes | |
195 | * | |
b9f210a3 SG |
196 | * @dev: video device |
197 | * @invert true to invert colours | |
5c30fbb8 | 198 | */ |
b9f210a3 | 199 | void video_set_default_colors(struct udevice *dev, bool invert); |
5c30fbb8 | 200 | |
1acafc73 SG |
201 | #endif /* CONFIG_DM_VIDEO */ |
202 | ||
203 | #ifndef CONFIG_DM_VIDEO | |
204 | ||
167c5898 WD |
205 | /* Video functions */ |
206 | ||
f674f7cf SR |
207 | /** |
208 | * Display a BMP format bitmap on the screen | |
209 | * | |
210 | * @param bmp_image Address of BMP image | |
211 | * @param x X position to draw image | |
212 | * @param y Y position to draw image | |
213 | */ | |
214 | int video_display_bitmap(ulong bmp_image, int x, int y); | |
215 | ||
216 | /** | |
217 | * Get the width of the screen in pixels | |
218 | * | |
219 | * @return width of screen in pixels | |
220 | */ | |
221 | int video_get_pixel_width(void); | |
222 | ||
223 | /** | |
224 | * Get the height of the screen in pixels | |
225 | * | |
226 | * @return height of screen in pixels | |
227 | */ | |
228 | int video_get_pixel_height(void); | |
229 | ||
230 | /** | |
231 | * Get the number of text lines/rows on the screen | |
232 | * | |
233 | * @return number of rows | |
234 | */ | |
235 | int video_get_screen_rows(void); | |
236 | ||
237 | /** | |
238 | * Get the number of text columns on the screen | |
239 | * | |
240 | * @return number of columns | |
241 | */ | |
242 | int video_get_screen_columns(void); | |
243 | ||
244 | /** | |
245 | * Set the position of the text cursor | |
246 | * | |
247 | * @param col Column to place cursor (0 = left side) | |
248 | * @param row Row to place cursor (0 = top line) | |
249 | */ | |
250 | void video_position_cursor(unsigned col, unsigned row); | |
251 | ||
252 | /* Clear the display */ | |
253 | void video_clear(void); | |
254 | ||
b26354cf HS |
255 | #if defined(CONFIG_FORMIKE) |
256 | int kwh043st20_f01_spi_startup(unsigned int bus, unsigned int cs, | |
257 | unsigned int max_hz, unsigned int spi_mode); | |
258 | #endif | |
fc1a79d9 HS |
259 | #if defined(CONFIG_LG4573) |
260 | int lg4573_spi_startup(unsigned int bus, unsigned int cs, | |
261 | unsigned int max_hz, unsigned int spi_mode); | |
262 | #endif | |
1acafc73 | 263 | |
0a6eac84 SG |
264 | /* |
265 | * video_get_info_str() - obtain a board string: type, speed, etc. | |
266 | * | |
267 | * This is called if CONFIG_CONSOLE_EXTRA_INFO is enabled. | |
268 | * | |
269 | * line_number: location to place info string beside logo | |
270 | * info: buffer for info string (empty if nothing to display on this | |
271 | * line) | |
272 | */ | |
273 | void video_get_info_str(int line_number, char *info); | |
274 | ||
8c466ed3 | 275 | #endif /* !CONFIG_DM_VIDEO */ |
1acafc73 | 276 | |
167c5898 | 277 | #endif |